Sökning: "cellulose nanomaterials"

Visar resultat 1 - 5 av 30 avhandlingar innehållade orden cellulose nanomaterials.

  1. 1. Cellulose derived carbon dots : From synthesis to evaluation as multifunctional building blocks in biomedical scaffolds

    Författare :Nejla Benyahia Erdal; Minna Hakkarainen; Jukka Seppälä; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose; microwave; carbon dots; polycaprolactone; scaffold; mineralization; drug loading; cellulosa; mikrovågor; kolnanopartiklar; polykaprolakton; stödmatris för vävnadsregenerering; mineralisering; läkemedelsbärare; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The implementation of biobased and biodegradable polymeric materials in biomedical applications is often coupled with issues related to their insufficient mechanical properties or limited bioactivity. In this thesis, a perspective on valorization of biomass is presented, demonstrating the transformation of cellulose into biobased carbon nanomaterials with the potential to serve as multifunctional property enhancers in polycaprolactone (PCL) scaffold materials for tissue engineering. LÄS MER

  3. 2. Lytic polysaccharide monooxygenases for green production of cellulose nanomaterials

    Författare :Salla Koskela; Qi Zhou; Markus Linder; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose; enzyme; CNC; CNF; LPMO; nanocellulose; wood; Biotechnology; Bioteknologi;

    Sammanfattning : Cellulose is the main structural polymer in wood, and its potential in the form of nanomaterial building blocks, nanocelluloses, has now been recognized. Nanocelluloses, including cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs), have become increasingly important in development of modern sustainable materials. LÄS MER

  4. 3. Thermal Conductivity of Hygroscopic Foams Based on Cellulose Nanomaterials

    Författare :Varvara Apostolopoulou-Kalkavoura; Lennart Bergström; Tatiana Budtova; Stockholms universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; thermal conductivity; cellulose nanomaterials; foams; hygroscopic; super-insulating; phonon scattering; moisture uptake; heat transport; Materials Chemistry; materialkemi;

    Sammanfattning : Biobased super-insulating materials could mitigate climate change by minimizing the use of petroleum-based materials, creating artificial carbon sinks and minimizing the energy needed to maintain pleasant interior conditions. Cellulose nanomaterials (CNM) produced from abundantly available cellulose sources constitute versatile, highly anisotropic raw materials with tunable surface chemistry and high strength. LÄS MER

  5. 4. Carbon nanomaterials from cellulose for efficient use in advanced applications

    Författare :Volodymyr Kuzmenko; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cellulose; energy storage; tissue engineering; carbon nanofibers;

    Sammanfattning : .... LÄS MER

  7. 5. Cellulose Nanofibril-based Hybrid Materials : Eco-friendly design towards separation and packaging applications

    Författare :Luis Valencia; Aji Mathew; Olli Ikkala; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cellulose nanofibrils; hybrid materials; membranes; aerogels; separation; food packaging; Materials Chemistry; materialkemi;

    Sammanfattning : Nanocellulose has been lately considered as the “Holy-Grail” in the design of sustainable materials due to its bio-origin and an unprecedented combination of prominent features, including good mechanical properties, anisotropy and versatile surface chemistry. In addition, nanocellulose in the form of cellulose nanofibrils, can adopt variable structures and morphologies depending on the processing technique, such as aerogels, films and monoliths. LÄS MER